Coupling



(No Model.)

J. LONG.

GOUPLING.

1 No. 510,353. Patented Dec. 5, 189s.

NrrnD TATES ArnNr Orman.

JACOB LONG, OF ALLEGI-IENY, ASSIGNOR OF ONE-HALF TO GEORGE M. VON BONNHORST, OF PITTSBURG, PENNSYLVANIA.

COUPLlNG.

SPECIFICATION forming part of Letters Patent N o. 510,353, dated December 5, 1893.

Application filed August 19, 1892. Serial No. 443.506. (No model.)

T ZZ whom t may concern:

Be it known that I, .IACOBLONG, a resident ofAllegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Couplings; and I do hereby declare the following to be a full, clear, and exact description thereof.

Myinvention relates to couplings for hose, pipes, &o.,its object being to provide acouplo ling in which the parts composing the same can be coupled together or taken apart quickly and without great inconvenience in handling, and at the same time forming a tight joint so that the lluids passing therein cannot escape I5 by leakage through the joint of the coupling.

My invention consists essentially in a coupling provided with two members, each having a flat face to contact with the other, and each having a lug and a recess projecting from and 2o extending into said face, said lugs and recessesy having dovetailed side edges engaging with each other by a side or transverse movement.

It also consists in certain other details of z 5 construction which will be more fully hereinafter set forth and claimed.

To enable others skilled in the art to make and use my invention, I will describe the same more fully, referring to the accompanying drawings in Which- Figure 1 is a side View of my improved coupling. Fig. 2 is a longitudinal section of the same. Fig. 3 is a face View of one of the engaging faces of the coupling. Fig. 4: is a longitudinal section showing the parts ready for coupling, and Fig. 5 is a longitudinal section of another formof coupling.

Like letters of reference indicate like parts in each of the views. I

My invention is illustrated for the coupling of hose or tubing, although it may be used in connecting'or coupling water or hose plugs, rods, &c. The hose or pipes a c are provided on their exterior surfaces with thev screw threads b around which are connected the coupling members c d by means of the screw threads e fitting in the screw threads b on the hose or pipes ci c., The members c CZ have the openings c' CZ' for the passage of the fluids therein, and the said lmembers c CZ have the engaging facesff thereon. The member c has on its engaging face f the lug g and recess h, and the member CZ has on its engaging face f the lug t' and recessj, the lug g on the member c being opposite the recess j on the 5 5 memberd and the recess h being opposite the lug 11 on the memberd when'the members c d are brought together for coupling. The side and front meeting edges of the lugs g t' and recesses hj are dovetailed as at k, and the mem- 6c bers c d are cored out at Z in order to lighten the parts. The two members c CZ are provided with the screw threads m on their exterior faces,and in order to cover the joint made by the engaging facesff on the members c cZand prevent all liability of leakage at said joint, there are screwed on the members c Z the nuts n, n which engage by their screw threads o with the screw threads m on the two members c d. These nuts n n have the sleeves 7o pp thereon adapted to surround the joimt made by the engaging faces ff', and they are also provided with the iianges q q thereon, so that a tool or wrench may engage with the holes or notches r therein to tighten or loosen the nuts as is desired.

In Fig. 5 is shown another form of my improved coupling as applied to a water hose or fire plug, which does away with the nut n, the member c acting as the nut and having the 8o engaging face f thereon. The member cis attached permanently to the pipe in the plug and the member cZ'being attached to the hose or connecting pipe, the member cZ having its sleeve p longer so as to cover the joint made by the engaging faces of the coupling.

- In the use of my improvedcoupling the members c d are generally permanently'attached to the hose or pipes c a with their engaging faces ff opposite each other, and 9o the nuts 'n n screwed back 'from the engaging faces fj" of the coupling. In case it isl desired to couple, it is only necessary to place the membersc CZ in a position so that the lug g and recess h on the member c are opposite or in line with lug t' and recess 7' on the member CZ, when by a side or transverse movement the two members c d can be brought together, the member c with its lug g fitting intothe recessj on the member CZ, and the lug t on the memtoo ber (l fitting into the recess hon the member c, so bringing the engaging faces ff of the members c d into contact with each other. Then the coupling is made as above described, thc dovetailed side and front faces la of the lugs g t' and recesses h j on the members c cl bind one upon the other and form a tight joint. After the coupling has been made, the nuts n n are then screwed up through the medium of the threads o thereon engaging with the threads m on the members c d, the sleeves 19 p' on the nuts n n meeting and forming the completed coupling. All liability of leakage is prevented on account of the dovetailed side and front meeting edges 7i; on the lugs g and recesses 7i j and the nuts n n which cover the opening formed by the engaging faces ff of the members c tl of the coupling.

To uncouple or detach the parts composing the coupling, all that is necessary is to unscrew the nuts n 12, back far enough so as to clear the engaging faces ff of the members c d, when the two members c d can be separated from each other by a side or transverse movement, so freeing the lug g on the member cpfrom contact with the recessj on the member d, and the lug t' on the member cl from contact with the lug 7L on the member c, so Separating the parts and putting them in position to be coupled again. The coupling can be screwed up and unscrewed rapidly on account of the two members being joined and separated by the side or transverse movement, and the nuts n n having their threads 0 thereon which engage with the threads m on the members c d made double-threaded or heavy.

The coupling is simple and durable in construction, not liable to injury or get out of order and permits of quick coupling or uncoupling. Allliability ot' leakage is prevented as practical experience has proven that the coupling forms a tight joint. I

Vthat I claim as my invention, and desire to secure by Letters Patent, is-

l. In a coupling, the combination of two members, each having a fiat face adapted to` come into contact with the other, and each having a lug and a recess projecting from and extending into said face, said lugs and recesses having dovetailed side edges and engaging with each other by a side or tran`sverse movement, substantially as set forth.

2. In a coupling, the combination of two members, each having a fiat face adapted to come into contact with the other, and each having a lug and a recess projecting from and extending into said face, said lugs and recesses having dovetailed side edges and dovetailed front edges, and engaging with each other by a side or transverse movement, and a screw threaded sleeve engaging with one ot said members and adapted to pass over said lugs to hold the coupling closed, substantially as set forth,

3. `In a coupling, the combination of two members, each having a flat face adapted to come into contact with the other, and each having a lug and arecess projecting from and extending into said face, said lugs and recesses having dovetailed side edges and engaging with each other by a side or transverse movement, and a screw threaded sleeve engaging with one of said members and adapted to pass over said lugs to hold the coupling closed substantially as setforth. n A In testimony whereof I, the said JACOB LONG, have hereunto set my hand.

J ACOB LONG. Witnesses:

RoBT. P. NEVIN, Jr., Ron'r. D. TOTTEN. 

